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winsys/radeon: check null in radeon_cs_create_fence

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Fixes the following segmentation fault:

radeon_drm_cs_add_buffer (bo=0x0) at radeon_drm_cs.c
  -> if (!bo->handle)
(gdb) bt
0  radeon_drm_cs_add_buffer (bo=0x0) at radeon_drm_cs.c
1  0x00007fffe73575de in radeon_cs_create_fence radeon_drm_cs.c
2  0x00007fffe7358c48 in radeon_drm_cs_flush radeon_drm_cs.c

Signed-off-by: Julien Isorce <jisorce@oblong.com>
Signed-off-by: Marek Olšák <marek.olsak@amd.com>
This commit is contained in:
Julien Isorce 2017-03-10 17:16:05 +00:00 • committed by Marek Olšák
parent 192de3f051
commit d09edb0146
1 changed files with 3 additions and 0 deletions
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3
src/gallium/winsys/radeon/drm/radeon_drm_cs.c
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@ -750,6 +750,9 @@ radeon_cs_create_fence(struct radeon_winsys_cs *rcs)
/* Create a fence, which is a dummy BO. */
fence = cs->ws->base.buffer_create(&cs->ws->base, 1, 1,
RADEON_DOMAIN_GTT, RADEON_FLAG_HANDLE);
if (!fence)
return NULL;
/* Add the fence as a dummy relocation. */
cs->ws->base.cs_add_buffer(rcs, fence,
RADEON_USAGE_READWRITE, RADEON_DOMAIN_GTT,